Dealer Signup Information. The 37th National Sports Collectors Convention will be held August 3-August 7, 2016 at the Atlantic City, NJ Convention Center. A limited number of dealer booths are currently still available.ealer Signup Information. The 37th National Sports Collectors Convention will be held August 3-August 7, 2016 at the Atlantic City, NJ Convention Center. A limited number of dealer booths are currently still available.
Carbon has by definition 6 protons. However, its many isotopes can have anywhere from 2 neutrons to 16 neutrons, with 6 neutrons being the most common (~95% of all carbon). Carbon has by definition <b>6 protons</b>.
Rating Newest Oldest. Best Answer: It depends on which isotope. But since phosphorus has an atomic number of 15, signifying 15 protons in the nucleus, and an atomic mass of 30.97, signifying 31 total nucleons, the average number of neutrons must be 31 - 15 = 16. Most atoms have a number of neutrons that is close to the number of protons. Phosphorus with an atomic mass of 31 is the only isotope that occurs in nature, but heavier phosphorus nuclei have been synthesized in labs.